Experimental study of a SmA*-SmCA* phase transition

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Sarmento, S (Author) Other; Chaves, MR (Author) FCUP; Carvalho, PS (Author) FCUP; Nguyen, HT (Author) Other

Journal

Title: Liquid Crystals

Vol. 28

Pages: 1561-1571

ISSN: 0267-8292

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 2 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-T6A

DOI: 10.1080/02678290110068415

Abstract (EN): We have performed a detailed experimental study of the electroclinic behaviour in the SmA* phase above a SmA*-SmCA* phase transition. The tilt angle and polarization were measured as a function of the applied a.c. electric field. and the dielectric constant was obtained under different values of the bias field (0 less than or equal to E-d.c. less than or equal to 3 V mum(-1)). In the region of linear regime, the behaviour observed for this SmA*-SmCA* phase transition is very similar to the one previously described for SmA*-SmC* phase transitions. The experimental results obtained under high bias field are in good agreement with the predictions of the simple theoretical model considered.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11